Selective signaling system.



No. 813,419. IATENTBD FEB. 27, i906. G. G. HAWLBY H. 0. HOLDBRNESS.

SELEGTIVB SIGNALING SYSTEM.

LPPLIGATIGI 'ILBD BBG. 15, ID3A 5 SHEETS-SHEET 1.

No. 813,419. PATBNTED FEB. 27, 1906.

C. G. HAWLEY & H. 0. HOLBBRNESS.

SELEGTIVE SIGNALNG SYSTEM.

APPLIOTIOH FILI@ DBG. X5, i903.

5 SHEETS--SHEBT 2.

ALW., .7

No. 813,419. PATENTED FEB. Z7, 1906, (L G. HAWLBY & H. 0. HOLDERNBSS.

SBLEC'I'IVB SIGNALNG SYSTEM.

APPLICATION FILED DEQ. 1983.

5 BHEETS--SHEBT 3.

a M im i my PATENTE P59, 2?, me. c. G. HAWLBY H. o. HOLDERNESS.

5 BHETS-S2T 4.

SBLEGTIVE: SIGNALmsfSYsTBM.

APPLIGATIBI FILED 3326.15, 1903.

Y Y W WMM/W l al 5 SHEETS-BHEBT 5.

Nu. 813,419. PATENTE) FEB. 27, 1906. C. G. HAWLEY a H. 0. HOLDBRNESS. SBLEGTIVE SIGNALING SYSTEM.

rumanos FILED 20.15. laos.

\ vented e certes. new, nse'ul, and

UNTTED sTATns PATENT -oFFIGi-i.

CHARLES (i. HAVVLEY ANTHERBERT HOLDERNESS, CHCAGO,

i .IL

sanecfrwesiemmnm oversee.

Speoisssisn Letters estonia resented Feb. 27, lees.

Applies@ sied hmmm is, ieee. aos no. lees-ie.

To @5 whom :if may concerm.-

Be it know taluni-we CHAnLn-e G. HAWLEY and Hic-enst O. Hommnesss, citizens oi the finited Si tes,V residing et'Chicagoy in the county of Coolz end State of illinois have in- Improred Selecti ve' System,V of which the following is s'siecficetion. Y

Gur invention rrelates 4te seiective signaling appsraft'lisperticnieriy intended for emloymentin railway'- block si nel systems .or theeomncunimzttion o'intell ence or information from one block-station t enother.

The invention reletes prtiesisrly to im# proveniente upon the system Ventiapparatus thht is shown Eend described in our pending appiiost'ion, Serial No. 94,482,4 iied February Yis scribe in aforesaid application; and to--this end our invention ensists in selective si Y einig and signal receiving apparatus o l the construction and combination of erts'hez'e-n` iuafter described, and particulmfy pointed outin the ciaincs. Y A A v Y The invention will be more readily uerVV stood by reference toV the accom enyngi,

drawings, forming a part of this speci cation; andin which-- Y Figure 1 is a front View of our apparatus Y Vcomplete fore signal-station. Fig. 2 1s c plan the line 3 Y of Fi "1; Fig. 4 is e. sneiiersee tion on the line 4 7 of Fig. 1.i is sven-5 iss 4Q the circuit of thetregisten j xjlexriee. 14

view of the ke board on the section-hns 2.1K; Fig. 3 is en en ergedv section substentialiygen 'neet section anche hse et @feige Fife e pian-View: siibstenticiiy ostlieiiine jlis perspective`I` Fes s@ ffpsfs Sheets Fiss 'isnenlargezfsce `View o Assriszixes with its *cover Iefy111. is sectional rien thereof on lineY 11V of; Fig i 0. .ontheeline I2 Wei is a `diogre.mrnetio View of t Y e electric circuits ofthe apparetus. i

"ew entre@ Y switchma Y he made to serve the purpose.

Fig, 1e.' efdeijsiief tes'signslmsgf; Het end ifs-Pesi; teken'imslsewobei-f 'elziowing the perte inthe-position ofgclejsing' The apparatus ismede up of two essentie' `ortions-c. signclsendingortion and a sig 5 5 el-i'eceivin portion; As s own in the drew ings We 'pre er to duplicate the parts upon e single board; Thus each board carries .e Sgnel-sendingcnd signalsreceivng mechanism if. r each of the blocks between which the i'oee'` or station is located. Thetwo sides of the board are identical, although the perte prei"r erably occupi? reverse positions. The con-V struction an operation of the mechanisms will be well understood from e description 6 5 one sie of the board. -The signeifsending 4 mechanism wi be iirst described.. This mechanism is composee of e plurality of keys and an iihpnse-trensmi' ingA or circuit-clos ing switch, to which various movementsIneyl 7o he im egted by seid keys. The signaling is done imparting electric impuises to the sign'allline, Winch im uises inluence and ef- Afeet the operation ci) the signo] -receivingy mechanism at the distant stetion--a meeh- 4venisrn that is identical withlthet hereinafter described. A single impuise causes e single i movement of the distant receiver,` While sets et tisje'or more im ulses cause greater move-- nient thereof,the est movement in eecheese 1 being thesignal-displey movement; On the jseme'board With the s'gnangekeys we 5re'- vide a. signaler-:leasing which servesslse in VtimeV of eodessignsis efter the manner oflm voril'lnzy" tciegsfeph code om? ncetedzwith si-distant sounder:` -z The ehieetrofthisinvention is to'-v 'niproe upon; the appar-sitos. that is ilius-V trated in ournendng appication herenbefore referred tofwhlch apparatus we eensider lmore or less obj'ectionehle by reason of the AempI oyicent of a plurality of eiectric switches, Whereas We now find that e singie The c' olieet of this invention ne? 95 therefore besaid to inolve the revision of s, peeuiier Ulss-sending' switc that shell Ahave s fesse s threw mi t@ which various fd` eesejsetnation shellY be imparten d 'elnt keys; These keys shell preferably hgvethe seme throw to avoid confusion in A l. t f eferringto the swings, thesignelilie-'s 2 sil hessen tovc'omprise snbstentiallyri hL-lf 'angled `nods eeeh having a. knob 3, w* "chi-` bceifsag suitable designatingmerk.` These rco -rock-shaft through the lost-motion arms 12, that are fastened to the rock-shaft.

These arms' (see Figs. 1., 3, 4, 8, and 9) overhang the key-rods 2, and different degrees of lost motion are provided for between the arms 12 and the key-rods, so that one key will pick up and move the rock-shaft immediately upon its being pulled. The next key will move idly for a short distance before it enages and moves the rock-shaft, and so on to the last key, which passes through the greater part of its throw before it communicates any motionto the rock-shaft. This ast key will communicate one ste or motion to the contact or s rin arm 9, w iile the key at the opposite en of t e row will communicate the maximum number of steps of motion tosaid contact-arm. By selecting a key and pulling same the desired sweep of the contact-,arm may be secured, and when the key is released the rock-shaft and the arm will be turned back by the pull of thev s ring 10, moving, however, at a regular spee because of the resence of the regulator 11. The o erator las only to pull the selected key to t e limit of its motion and then release it, whereu on iti will fall back. He is not required to give the key different degrees of motion for different signals. The contact-bearing part* of the si nal-sending switch is preferably made as shown in Figs. 1, 5, 6, and 7, wherein it will be seen that an insulating-block 13 carries a plurality of regularly-spaced contacts `14, an extra contact 15, and a main lcircuitestablishing contact 16. 17 is an insulated stop for the contact-arm 9. A suitable battery or generator is arranged on the line and is connected with the contacts 14 and 15. The contact 16 represents the ground connection. The main line is connected to the contact-arm 9. To revent the sending of impulses during the orward stroke or sweep of the contact-arm, a contact-lifting device 1s arranged on the block 13. This comprises the plate 18, arranged on the insulatingosts and having its forward end 18 bent own onto spring contact with the block 13. The

' ed e of the plate 18 isslotted, and the porti ns 18 thus se arated have'their forward ends bent inward v, leaving quite a Wide slot between them. en the contact-arm is swung forward by the motion of the rockshaif, it will ride upon the end of the plate 18 andif its motion is limited to one step 1t will 'thereof bem rest on the first section 18 of the plate 18. If its motion is equal to a great number of ste s, it will rest on another of the parts 18 an( will be permitted to ass through the slot and drop u on the blocli 13. 1t will therefore sweep ack over the contacts 14 and the contact 15 and in doing so cause electric connections that result in one or more electric impulses upon the line, according to the number of contacts engaged by the contact-arm 9. Near the end of its return stroke the contact-arm passes beneath the downwardlyturned end of the plate 18 and is thus made ready for another movement. 19, 20, and 21 are binding-posts provided on the block and respectively represent the contacts 14, the contact 15, and the contact 16. The electric connections between the contacts 14, l5, and 16, the battery, ground, and the line will be understood upon reference to Fig. 14, which will be referred to in detail. The remaining members of the keyboard represent the signalreleasing and code signaling devices. Such remainin parts comprise the telegraph-key 22, tlgie cut-out switch 23, and the contact or contacts 24, preferably arran ed on the under side of the desk-top 4. contact device 24 comprises a metal strip '24', that may be fixed on the top 4, and a movable strip or series of contacts 24, adapted to be forced against 24 by either one of the signal-sending keys 2 when raised. The contact device 24, the ke r 22, and the cut-out 23 are connected in t e release-circuit, which is preferably separate from the signal-circuit. The telegraph-key 22 is provided with an extra contact that is oined to the contact-strip 24. The key itse f is connected with ground, and the usual contact of the telegraph-key is connected to the releaseline. The release -line deriyes its energy from an r suitable source,- such as a battery arran e therein. The cut-out switch 23 is inclu ed i'n that branch-of the release-circuit which includes the release-ma net of the signal-box belonging to the ban of keys, and the cut-out is operated by the retirement of the contact-arm 9`through the operation of either'one of the signal-keys to prevent the olpration of the signal-magnet referred to w en a releasing impulse is sent through the Atelegraph-key or the contact device 24. The

cut-out is restored to its closed position by the return of the arm 9, an insulated pin 23 thereon at that time engaging the springcontact of the cut-out.

The operation and effect of the signal-keys will be explained later; but the construction now understood reference will be made to t e signal-receiving portion of the ap aratus. TheV operating parts of the slgna -receiving mechanism are arran ed upon a. swinging door 25 of the Aclockame 26,

'hich contains a clock 27. The frame 26 is provided with a central opening for the reg- IDO IIO

with a gea1I 54 on the shaft 34, so that the swinging movement of the punch 48 is always proportional to the movement of the ratchet 36 and the dial 33. In other words, the position of the punch in the slot 49 will exactly correspond to the particular signal shown in the opening of the signal-box 31. 51 is journaled on a stud or post 51', and the armature 52 of lever 50 swings slightly with respect to the magnet 53, which 1s fixed on the door; but the disalinement of the armature does not materially affect the force of the magnet thereon. The armature and punc -lever will be moved each time that the J magnet 53 is energized and at each such movement will drive the punch against or through the paper re istering-disk. In this manner a mark 1s ma( e upon the paper in the annular space, which corresponds to the signal exposed in the box and between the ra.- dial lines which mark the minute and hour of its exposure or recei t. The manner in which the punch is ma e to o erate after the signal mechanism -has comp eted its set of movements is well illustrated in Figs. 10 and 13, taken. in connection with Fig. 7, showing the extra contact 15. This contact re resents a battery or source of ener y whic is added to the source represented by the contacts 14 when the contact-arm 9 on returning bridges the last contact 14 and the contact 15 thus sendin a heavier im ulse over the si nal-line. T 's final impule serves not ony to depress the armature of the signal-magnet and move the dial 33 the iinal ste but also serves to move the armature 37 a greater distance than do the minor impulses represented by the contacts 14, and this greater movement of the armature is employed for throwing the registering-ma net 53 into circuit for the actuation of t e punch. The

awl 38, Whose downward movement is lim-l 1ted by the upper edge of the bracket 35, is not carried directly upon the armature-lever `37, butl is ivoted upon an auxiliary lever or arm 54.--

e' art 54 may be pivoted'on the post 40, and t levers 37 and 54 are normally held t` htly to ether by a spring 55, that is carrieldgby the ormer.- This spring is sufficiently strong to resist the armature pull When the magnet 37 is energized by the weak impulses transmitted from the contacts 14 at the distant station; but when a stron er currentjs thrown u on the signal-line, t rough themedium of t e heav battery contact 15 at such" station, the pul of the magnet 37 will exceed the .strength of the spring 55, and the art 54 being blocked by the engagement of t e paWl 38 with the bracket 35 the armature-lever 37 will be drawn away from it. 56 and 57 represent contactoints upon the armature-lever, 37 and the racket 35, respectively. The extra movement of the armature-lever' closes the contact 56 upon the contact 57. The contacts' are in circuit withA Vthe time of its receipt.

the registering-magnet 53. Hence when the circuit is closed through said contacts the magnet 53 will be energized and operate the punch. We prefer that the mavnet 53 shall derive its current from the signal-circuit, and therefore connect one of its leads 58 to the lead 41 ofthe magnet 37, while the other lead of 53 is connected-.Ito the contact-point 57'.

By means of this mechanism a recordis made of each signal received, giving its kind and The registering papers or disks are changed every twelve hours and are kept for reference. It will be noted that the signal which either operator sends is recorded at the station of the other operator. The call-signal is referably made the last upon the dial, and iecause of this arrangement the outermost position of the punch will represent a call. This being the case, it is a simple matter to provide an alarm-bell in proximlty to the apparatus (see 60, Fig. 1) and m'ake the circuit thereof to be closed by the Swingin punch device when the latter reaches its nal or outermost position. 61 represents an insulated contact on the door 25 in circuit with the bell. This is enga ed by and stops the sector 51 when it renc es the call posltion, thereby closing the bell-circuit through the door as aground connection.

The electrical features and the operation of the apparatus will be well understood from Fig. 14 of the drawings, same beimy a diagram of the parts and their circuits. rlwo stations are illustrated, station A and station B.

These are supposed to be several miles distant from one another. S represents the signaling line or circuit, and R the release line or circuit. The signal-line S connects the contact-arms 9 of the two stations. Its ends are therethrough normally connected to ground, and the line is normally free from current. The release-line R connects the two releasemagnets 45 of the stations, being carried through the cut-out 23 in each instance. The ends of this line are normally grounded, and the line is normally free from current. If desired, an opposite condition may be maintained-that is, current may be maintained on both lines-in which case the electromagnets.will o erate upon the breaking of the circuits. he open-circuit plan is illustrated because it lends itself most readily to an ex glanation of the working of the apparatus. he contact-arms 9, it will be observed, normally rest upon the contacts 16 of the1r res ective switch-blocks 13, and the lead 41 of t e magnet 37 is in each case connected to the contact 16, While the opposite lead of said magnet is connected to ground. In the diagram the ground connection is shown to be through the metal door 25 and the., roundline 63 leading therefrom to Gr. l. lghe lead 58 of the magnet 53 is connected to 41, and on the op osite side the magnet is connected to groun through contacts 57 56, lever 37',

IOC

'net 45 by opemn connected wit all o ground (l rect.

14. His the extra or heavy ba inthe line (it, extending between t 62 between batter N and are the lea orV connections of the alarm-hellV 60, the first bcingl connected to the insulated contact 61, w 'le the vother is connected' to one of the The circuit of the bell 61, through the be to line 60', to battery N, to

plate 25 and theswing- ,ing to the Y w ich at certain tunes engages 4t e contact 61. The sector 51 is normally' out oengag'e-V v ment with said contact. 'The/normal ground ed connection of line R through magnet 45 has beenlexplaned. The connection 15 and a point on line and contacts i4. 61

cells of the battery. ma be traced` from contact through line 63 .to the sector 51 belongingI tween the normally open cont telcgr aph-key and the cont act-stripV '24, with itis connected to the line R,V includes the lines and 66, the latter inclading the releasing-battery R B and being cennectedto the Vline Rv at an intermediate point. ground connections with the magnets 37 and closed. Therefore the mags prepared to re'- j 45 are normally ceive impulses from theiot er it is desired to signal station B from station the contact-arm Q'wil be thrown the distance determined by the key which is select'- to begin with.) The movement of' the arm 9 irznnxliatelY breaks theconnection between the sign ed, (usually the call-key line AS f andv the megneelead. 4 armi leaves thecontact the connection 1h tween breaker 23,'and

4the strip 24 aainst the stri '24', thus closing R B t ough 67,k ey 22,

thecircnit of att-ery 24, 24", 66, R, circuit-breaker 2 included in line 62 the contacts 14 and which leads to the ground connection 63 or to It will be noted that the battory-line 62 is normally o; en at the contacts 16. lt also breaks the line R and niagthe contacts of the circuiteore the contact-arm may settle upon a contact Vlei. it will have closed'A the normal or tte arranged e contact line 62, and

unch.4 and heactY 22", of the where- The . Thus when l because the Vthe magnet 45 R, thence through circuit-brealeil'V 2 3 at staline 67l to G12 at 3 at station B,

, magnet 45st said station, to the ground conat station B.

nection through' 47, 22',

will then be energize 23, and 67, to Gr.,2 The magnet 45 at stationB d and will operate the pawls of the dial belonging theretoto release said dial. ,Irnnnt'ediar y the 'dial the after the release of anni) at station A will begin Ato .travel over theicontacts 14, andat eacheon- 'arm 9, linel tact an' impulse tion :A4 throih 63, 62, battery the oircui lead 41, niagnet'? to Gr. 1v, thro during theYY net 37 will thus be energized N, contact la,

to arm` 9l of station Balinese will be traced through. contactfn sage of 9 (A) over each contact 14, causing one or more step movements of the station B. As the arm 9 (A) is leaving the last contact I4 it will engage the contact 15, whereupon the hea Abattery will be thrown upon thelineV 62. c transmission of the current from 'H being simply added tothat from N may betraced in the same manner. Its momentary introduction upon the line S will cause the necessary additional movement of the armature-lever 37 at station B to close the shunt-circuit on 41. through punch-magnet 53 and contacts 57 and 56 to ground through plate 25 and ground connections 63. Upon caving the contact 15 the arm 9 at station A'Will re ain its connection 'svitl'icontact #6, Bild lll tnrneignal to the signal-magnet 3? at station Meantime the circuit-breaker 2 3 will have k een closed by the return ci arm 9 (A) and the release-line will he closed to ground through inagnet 45st A. The operation of the magri ets l 45 and'? at A from the keys at B is identical ith that above described, and itis enig;r necessary to add that when it is desired to transmit a Misefcode signal fromV one station to. the other the telegraph-ke 22 is used. Wlan this key is presse down, t e connectionwith on the saine hoard Will broken at contact 22', so that the home 'dial `will .not be released." The distantgreleasemagnet, however, will be' actuatedfrom bat te R B through the closin of its circuit, at suc moment traced as fo lows: f beginning at Gr. 2, station A, through 67, `to telegraph` ',key 22, thence to contact 22, lines=65 and 66, through battery R BV to mainreleasevline tion B, and thence throngh release-magnet 45 at stationB to line 4?, contact 22'f',^kcy22,and

Y stationB.

The registering dialV an 'dislryneayz ii desited, Yhe employed for re 'ording' theoperations of the'semaphores ,hose` working is controlled by our apparatus,l which case Wevgrefer to use a second punch mechanism.

e prefer to provide l-throw devices in connection Withthe pull-keys at each station to compel. theoperator to lthrow thein the full distance at each operation.

As other uses and various modifications of ourinvention will readily suggest themselves to one skilled in the art, we do not coninethe invention to the specific construction hereixi Ysltuown .and described.

Having thus described our invention, we

eleii as new and desire to secureby Letters' i l .Pl-L Y l. Ingan electric signaling system, a signal-` be prepared to transmit the re- 9C be ICD cirouitand a release-circuit, in combination Withisigualing and-releasing eneits, means fori-actuating the signaling'- a devices arranged 1 -atdlstantjpointsor stationaonse i x ,granting-tho operationofits signaling 3. ln an electric signaling system, a signal-v ing-circuit connecting distant stations, in combination with electromagnetic signal-display means at each station, a suitable switch at each station normally connecting the si naling means thereof in circuit, a suitab e source of electricit at each station and normally disconnecte from said circuit, and a plurality of electriccontacts connected with each source of electric energy, for enga ement by the res ective switch during the isconnection of t e latter from its respective signal-display means, substantially as described.

4. A signal a paratus, comprising electromagnetic signa -display means, in combination with an electric switch comprising a plurality of contacts and a movable member, an electric circuit normally including said movable member and said signal-display means, and a suitable source of electricity connected with said contacts, and means for imparting different degrees of movement to said movable member, for the transmission of electric impulses to said circuit, substantially as described.

5. In an electric signaling system, a signaling-circuit and a releasing-circuit, connecting distant stations, in combination with electromagnetic signal display means at said stations, an electric switch at each station having a. movable member normally'completing the circuit of the respective signal-display means, electromagnetic signal-releasin means at each station, the movable switc member of each station normall completing the circuit of the respective re ease means, suitable sources of ener in said circuits, means for causingclectric impulses upon said releasin -circuit/and a plurality of contacts provide in connection with each of said movable members, for cooperation therewith, to send impulses u on said signaling-circuit, substantially as escribed.

v,6. In an elect-ric signaling system, signal and release circuits connecting distant stations, in combination with electromagnetic si nal-display means normally connected with said signal-circuit at each station, signal-releasing means normally connected with said release-circuit at each station, an electric signaling switch at each station, for transmitt' g impulses to the signal means at the other Iaation, and means at each station whereby, y the actuation of the signaling means, the releasin means of the other station Willbe actuate in advance of the signaldis lay means at the latter station, substantia y as described,

, 7. In a signaling apparatus, a suitable electric circuit containing pairs of signal-display and signal-releasing devices, in combination with a selective si naling switch or contact device for each sai pair,- energized branches of the circuit including said switches, a plurality of keys at each station, for operating its selective signaling-switch, and a releasecircuit closer at each station, operable by any of the keys thereof, vsubstantially as described.

8. Inasi nalin apparatus,an electromagnetic signa -disp ay device, in combination with a selective impulse-switch or contact device in. circuit therewithbut distant there- 'from, signal-releasing means, a signal-releasing key in circuit therewith but distant therefrom, a plurality of signaling-keys provided in connection with said selective signalin device, and means connected with said re easing-key for automatically releasing the distant releasing device on the operation of any one of said signaling-keys, substantially as described.

9. In an electric signaling apparatus, a movable signal-display member, in combination with a ratchet device, a lever bearing the pawl of said ratchet device, an armature-lever yieldingly connected to the awl thereof, means limiting the movement o the pawl-lever, acontact for engagement by the armature-lever upon its separation from the paw]- lever, and an electromagnet for actuating said levers simultaneously, substantially as described.

10. In a signaling apparatus, a movable signal-display member, in combination with an electromagnetic device for actuating the same, a signal-registering mechanism having a movable member operated by and in time with said display member, and electromagnetic means for actuatin said movable member after it is positioned y said display member to register the osition assumed by the display member, su stantially as described.

11. In a signaling a paratus, a movable display member, in com mation with an electromagnetic step-b -step mechanism for operating said mem er, an electromagnetic punch to be energized by an extra movement of the electromagnetic mechanism, and a registering device having a member operable by said electromagnet and to which step-by-step movement is imparted by the movement of IIC seid display member, substantially as desaid ocereting Ineens, substantially as described. scribe 12. In a signaling e params, a signel-dis- In testimony whereof we have hereunto play member, ineom @nation with electro- I set our hands, this 8th der of December, A.

5 magnetic operating Ineens therefor, capable D. 1903, in the resence of two witnesses. I5

of e ncrmal and an extra movement, the cir- CHAR ES G. HAWLEY. cuit; of eeid electromagnetic registering HERBERT O. HOLDERNESS. Ineens, and en electromagnetic re istering Witnesses: means included in a branch of sei circuitl J. K. JoIeE,

1o and operable upon the extra movement of B. K. SEFTON. 

